Closure lock and actuating mechanism



1950 E. KRESSBACH 2,519,480

CLOSURE LOCK AND ACTUATING MECHANISM Filed March 10, 1947 2 Sheets-Sheet 1 ATTORNEYS 2, 1950 E. KRESSBACH 2,519,480

CLOSURE LOCK AND ACTUATING MECHANISM Filed March 10, 1947 2 Sheets-Sheet 2 IN V EN TOR.

ATTORNEYS Patented Aug. 22, 1950 UNITED STATES PATENT OFFICE ('J'IJGSURE LOCK AND ACTUATIN'G MECHANISM Edward 'Kressbach, Milwaukee, Wis.

Applicaition'Marh 10, 1947, SerialNo. 733,451?

(My present invention relates generally to improvements in "the art :,'of closures and relates more sparticularly :to improvements in the construction and operation 'of "closure locks and actuating mechanisms.

A primary ob'jectof the present invention is -.to iprovidezan improvedclosurellock and actuating :me'chanism- =.which is simple, compact, and durable in construction, and which is moreover highly efiicien t and icpracticaliin actual use.

:It is .a :more specific object of this invention .to provide animprovect closure-actuating :mechanism which is adapted to be readily locked by means of a tumbler lock and in which the cl'osure .m'ay still be opened and'closeddn the event the key is sbroken while :in the lock.

:Another specific object of the :invention is to --provide an :improved closure 'lock and actuating rmechanism wherein :a :toggle is employed for positively "preventing :movement :of Fthe closure by prying or the like.

Another specific object :of :my invention is to .provide 'an improved and highly emcient closure actuating mechanism which "is silent in op'eration and especially adapted for use in church tab'ernacles and the like and in localities where 'noise is objectionable.

A further-specific object of my present inven- 'tion is to provide an improved closure actuating mechanism which "is adapted to permit positive opening and closing of "the closure without the use of toothed gearing.

An additional specific object of the present invention is to provide an "improved closure lock and'actuating mechanism'which comprises rlatively few simple parts which may be readily adjusted-t insurejprop'er opening and closing.

"Still another specific object of the present invention is to provide an improved closure lock and actuating mechanism which has many adaptations, which may be readily manufactured and installed -at moderate cost, vand wherein all parts are easily accessible for repair or replacement.

These and other .specificobjects and advantages of the ,present invention willtbe apparent from the following detailed description.

clear conceptionof ltheseveraltfeaturesicon stituting .my .present improvement, nd .of the mode of constructing and of utilizing closures provided with locks :and actuating mechanisms embodying :my .invention,1may be had by referring \to the I drawings accompanying and :i ormiing .al partiof this specification, wherein like refer )2 once characters -.designate 17116531118101 similar parts in the various .views.

Fig. l .is a bottom .viewpf alclosure lock and actuating .mechanism embodying .my invention, showing the parts in looking position;

Fig. 2 is a part sectional fragmentary .front yiew 0f the assemblage showing the closure locked in closed position, -a section "having .been taken transversely through .the .lock along the line 2--2-of -Fig..-1;

Fig. .is -a :bottom view ,of the mechanism showing the closure inmopen position;

Fig. 4 :-is a mart ,sectional fragmentary .front vview showing thesclosure open "and with the lock in elevation as applied to a .fragment of the casing; and

Fig. 5 is a side view of the special releasing and latching bar adapted for use with .my ,improved mechanism.

While :the invention .has :been shown and described as being particularly applicable to closures of a particular type .mounted .for sliding aarcuate ,movement about a scen'tral pivot, it is not my desire onintentionto unnecessarily limit thescope or utility of .thelmprovement by virtue of such embodiment.

Referring .to .the=drawings, the typical ElSSYflflblage shown .thereinas embodying the improve- :mentcompr-ises, in general, a tabernacle casing .01" wall ill of substantially cylindrical shape and. having anopening H adapted to .beiclosed bra --door.or closure l2; a.bottom,plate .113 secured in suitable fashion to an end of the casing in; a base plate M spaced irom the .bottom .plate A?! and supported by imeans of columns -or .posts 9 5, 15, the plate M thereby iorming "the tabernacle vfloor and providing a housing .for the improved closure lock and actuatingmechanism; Va tumbler lock 4 6 of the Yale type secured in :position below the base plate M bymeans.of.amountingbracket or plate 11- or the .=like attached .to the plate M by screws IS; a substantially flat bracket is or :the like mounted to swing on (an anti-friction bearing .20 secured to the bottom of the base plate 44, the .bracket 19 carrying the closure .12 at its swingingendfso .as to \p ermit .arcua te. swinging movement of .the closure lZabout ithe :periph- -ery of the plate M; a toggle .arm or lever it! having one end thereof rigidly secured, by screws '2-2, to the revolvable hub .23 of the lock 16 and the swinging end thereof .-loosely pivotally :attached to one end of -a toggle link or member 224: a motion rtransfer lever 25 fixedly pivoted :to lthezbottomlof the plate 14 at 3 "and having one -.end thereof loosely pivotally connected to the toggle arm or link 24 and its opposite end pivotally connected to a link 25, the opposite end of which is pivotally connected to the closure carrying bracket l9 at 28 intermediate the bearing 20 and closure 2; a depending projection 29 carried by the bracket i9 near the closure I2 and cooperable with a fixed stop 39 secured in a suitable manner to the plate H or the base i4 adjacent the lock hub 23; and a latch hook 35 carried by the lock hub 23 and projecting laterally therefrom and adapted to engage the projection 29 upon rotation of the hub 23, the hooked element or latch 3| being provided with a headed pin 32 extending outwardly therefrom for reasons to be hereinafter more fully described.

The lock is of the usual well-known construction and the lock casing 33, which is secured to the plate or bracket |'I, carries the tumblers 34 which are actuated upon insertion of the ke 35 to release the usual revolving plug which carries the hub 23 on a square shaft thereby providing for rotation of the hub 23 with the revolving plug upon turning of the key 35 within the lock. To positively stop rotation of the hub 23 and its associated parts in locked position as shown in Figs. 1 and 2, a laterally projecting stop pin 31 adapted to coact with a depending portion of the plate I! may be pro vided: and reverse rotation of the hub 23 may be positively stopped by proper placement of the supporting column I5 so as to coact with one edge of the plate l9 upon opening swinging movement thereof through its toggle and link connections with the hub 23, as will be hereinafter more clearly described, to the position shown in Figs. 3 and 4.

To provide for proper adjustment of the 010- sure actuating mechanism, the toggle member 24 may be provided with screw threads extendin to the opposite ends thereof and coacting with the internally threaded pivot sockets 38 which may be clamped in adjusted position on the member 24 by means of lock nuts 39, and the link 7 .2! may likewise be provided with screw threads adapted to coact with the associated internally threaded pivot Sockets 4!! which may be clamped in adjusted position in like fashion by means of lock nuts 4!. Adjustments in the length of either the member 24 or the link 2'! may he readily eifected in an obvious manner b first detaching either end of th member 24 or link 27 from its associated element 2|, 25, or I9 as the case may be, thereafter backing the lock nut 39 or M away from its adjacent socket 353 or 49, next screwing the socket 38 or 48 on the threaded member 24 or link 21 in the desired direction. and finally returning the lock nut to locking position adjacent the adjusted socket and efiectin attachment of the member 24 or link 2! to the element 2|, 25, or 53 from which it was detached.

The closure I2 maybe readily unlocked and sv "ung from closed and locked position shown in Figs. and. 2 to open position shown in Fi s 3 and 4 by merely inserting the key 35 within the look I and rotating the same clockwise. Insertion of the key 35 within the lock l5 moves the tumblers 34 so as to permit rotation of the usual revolvable plug within the lock casing and clockwise movement of the key rotates this plug and the square shaft 38 and the hub 23 carried thereby. Since the latch hook 3 and to gl lever 2| are both rigidl secured to or formed integral with the hub zaciockwise rQ a Q of the hub 23 causes the latch 3| to swing out of engagement with the projection 29 to unlock the closure and causes the toggle lever 2| to simultaneously swing downwardly moving the lever 2| and its connection 24 across the toggle axis, thereby swinging the bracket IS on its bearing 25!, through the connecting toggle member 24, motion transfer lever 25, and link 21, toward the position shown in Figs. 3 and 4. As the bracket i9 is thus actuated, the closure I 2 carried thereby is arcuately swung to open position, movement of the entire mechanism being positively stopped with the closure I2 in open position upon contact of the bracket I9 with the column I5.

To effect closing and locking of the closure or door i2, it is merely necessary to rotate the key counterclockwise and thereafter withdraw the same from the lock I6. Upon such counterclockwise movement of the ke 35, the toggle lever 2| is swung upwardly toward the base plate M, the lever 2| and its connection 24 being moved across the toggle axis, thereby causing the closure carrying bracket |9, by reason of the connecting elements 24, 25, and 21, to swing toward the lock it and the position shown in Figs. 1 and 2. Simultaneously, the latch 3| is swung upwardly and into hooked engagement with the projection 29, as shown in Figs. 1 and 2, after the projection 29 reaches the stop 30. When the mechanism is in such door closed position, the stop pin 31 on the hub 23 is in positive contact with the depending edge of the bracket I7, and upon withdrawal of the key 35, final locking is eifected.

Should the key 35 break while in the lock IE, it would normally not be possible to effect actuation and latching 0f the closure I2 until after repairs have been made. However, I have provided means whereby the closure may still be opened and closed, as well as latched and un latched, as long as the lock tumblers 34 are in such position as will permit rotation of the hub 23 and square shaft 35. As hereinabove set forth, I provide the latch 3| with a headed pin 32 extending outwardl therefrom; and I additionally provide a through opening or aperture screwthreaded to receive a closure screw 42 in the casing wall in adjacent the lock l8 and in the vicinity of the latch 3|, and a slightly hooked elongated bar 43 which may be readily utilized to release and latch the mechanism in such emergencies before repair of the lock may be effected.

If the key 35 is broken off in the lock IS with the tumblers in such position as will permit rotation of the usual revolvable plug, square shaft 36 and hub 23 and it is desired to latch or unlatch the closure I2 and to actuate the same, the screw 42 may be readily removed from the aperture in the casing wall, and the hooked end of the bar 43 may then be inserted through this aperture and into engagement with the headed pin 32 carried by the latch 3|. With the bar 43 serving as a lever fulcrumed in the casing I9, the latch 3| may then be swung into or out of engagement with the projection 29 to effect latching or unlatching of the mechanism in an obvious manner, thereby preventing or permitting opening of the closure l2 as the case may be, and this procedure may be repeated as often as necessary until repairs have been made to the lock I6.

From the foregoing detailed description, it will be apparent that my present invention provides a simple, durable, and compact locking and actuating mechanism for closures, all parts of which a may be readily manufactured and quickly assembled at low cost. The improved mechanism has proven highly efficient and practical in actual use as applied to church tabernacles, and may obviously be readily utilized in other instances as applied to doors and closures. Employment of the toggle lever 21 and its associated parts, including the link 24, lever 25, link 21 and bracket 19, eliminates the need of employing expensive toothed gearing, and furthermore provides an inexpensive mechanism wherein movement of the closure by prying or the like is positively prevented. The closure actuating mechanism is especially applicable and particularly advantageous for use in localities where noise is objectionable since it is silent in operation, and positive opening or closing of the closure 12 is permitted and effected by one simple operation. The parts may be readily adjusted in a simple manner to insure proper opening and closing, and all parts of the mechanism are easily accessible for adjustment, replacement and/r repair. An extremely valuable and important feature of the invention is the provision of means, including the headed pin 32, aperture adapted to be closed by the screw 42, and the latching and release bar 43, which permit ready actuation of the latch and actuating mechanism in emergencies during such times as the key may be broken ch in the lock.

It should be understood that it is not desired or intended to limit this invention to the exact details of construction or to the precise mode of use, herein shown and described, for various modifications within the scope of the appended claims may occur to persons skilled in the art to which this invention pertains.

I claim:

1. A closure lock and actuating mechanism comprising, a fixed support, a closure swingable about a pivotal axis relative to said support, a lock fixedly mounted relative to said support and having a laterally projecting arm swingable about the axis of rotation of the lock key, stop means associated with said support for limiting the movement of said arm, a link having one end connected to the swinging end of said arm and the other end associated with said closure remote from its pivotal axis to transmit motion from said arm to said closure, and means for swinging said arm and said link to a position wherein the swinging motion thereof is arrested by said stop means to positively prevent opening of said closure by externally applied pressure when the lock key is removed.

2. A closure lock and actuating mechanism comprising, a fixed support, a closure swingable about a pivotal axis relative to said support, a lock fixedly mounted relative to said support and having an arm swingable about the axis of rotation of the lock key, a link having one end connected to the swinging end of said arm, another link having an end connected to said closure remote from its pivotal axis, and a motion transfer lever having its medial portion pivotally mounted with respect to said support and having opposite swinging ends connected to the other ends of said links.

3. A closure lock and actuating mechanism comprising, a fixed support, a closure swingable about a pivotal axis relative to said support, a lock fixedly mounted relative to said support and having an arm swingable about the axis of rotation of the lock key, a link having one end connected to the swinging end of said arm, another link having an end connected to said closure remote from its pivotal axis, and a motion transfer lever having its medial portion pivotally mounted with respect to said support and having opposite swinging ends connected to the other ends of said links, said arm and said first-mentioned link being swingable to a position wherein the swinging motion thereof is arrested to positively prevent opening of said closure by externally applied pressure when the lock key is removed.

4. A closure lock and actuating mechanism comprising, a fixed support, a closure, a support for said closure swingable about a pivotal axis relative to said fixed support, a lock fixedly mounted relative to said fixed support and having an arm swingable about the axis of rotation of the lock key, a link having one end connected to the swinging end of said arm, another link having an end connected to said closure support remote from its pivotal axis, and a motion transfer lever having its medial portion pivotally mounted with respect to said fixed support and having opposite swinging ends connected to the other ends of said link 5. A closure lock and actuating mechanism comprising, a fixed support, a closure, a support for said closure pivotally suspended from said fixed support for swinging movement relative thereto, a lock secured to said fixed support and having an arm at its inner end swingable about the axis of rotation of the lock key, a link having one end connected to the swinging end of said arm, another link having an end connected to said closure support remote from its pivotal axis, and a motion transfer lever having its medial portion pivotally mounted on said fixed support and having opposite swinging ends connected to the other ends of said links.

6. A closure lock and actuating mechanism comprising, a fixed support, a closure swingable about a pivotal axis relative to said support, a lock fixedly mounted relative to said support and having an arm swingable about the axis of rotation of the lock key, a link having one end connected to the swinging end of said arm, another link having an end connected to said closure remote from its pivotal axis, and a motion transfer lever having its medial portion pivotally mounted with respect to said support and having opposite swinging ends connected to the other ends of said links, said links being adjustable in length to facilitate proper positioning of said closure.

EDWARD KRESSBACH.

REFERENCES CITED Ihe following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,107,297 Grossman Aug. 18, 1914 1,842,531 Mariotti Jan. 26, 1932 1,951,432 Mertel Mar. 20, 1934 2,115,415 Danninger et al. Apr. 26, 1938 FOREIGN PATENTS Number Country Date 47,185 Austria Mar. 27, 1911 

